CVE-2026-84200

Kyverno versions v1.9.0 through v1.12.7 contain a policy exception handling flaw. When a policy in enforce mode is combined with two PolicyExceptions, the less restrictive exception takes precedence, allowing an attacker to bypass the policy by crafting a resource name that matches the second exception's name pattern (e.g., '*ingress*'). This can be used to circumvent policies such as one blocking hostPath volumes. Fixed in v1.13.0.

Referanslar

• https://github.com/kyverno/kyverno/security/advisories/GHSA-gg4x-fgg2-h9w9
• https://www.vulncheck.com/advisories/kyverno-before-1.13.0-policy-bypass-via-multiple-exceptions
• https://github.com/kyverno/kyverno/security/advisories/GHSA-gg4x-fgg2-h9w9